Personal Last-mile Mobility is the world's first four-wheel balancing electric skateboard. It can be accelerated, decelerated, and reversed by merely tilting the deck. It is equipped with four in-wheel electric motors, and can be driven at high speeds of 40 km/hr or more. By using two tilt sensors inside, the center of gravity is always controlled by measuring the tilt of 1000 times per second, so it is stable even when accelerating or decelerating. Its unique design captures its fast, dynamic and strong movement.